Prince Louis, the youngest child of Prince William and Kate Middleton, made his Christmas debut attending church with the royal family on Sunday.
The four-year-old joined siblings Prince George, 9, and Princess Charlotte, 7, and the Prince and Princess of Wales to greet the public.
The young royal held his mothers hand as the family made its traditional walk to the Christmas Day service. After the service, Prince Louis stepped out to greet members of the public.
Prince George and Princess Charlotte, old enough to attend official events, attended the memorial for Prince Philip and the funeral for Queen Elizabeth earlier this year.
